Florence And The Machine and Rihanna have been given headlining duties at this year's Radio 1's One Big Weekend on the Saturday (22 May) and Sunday (23 May) respectively.
Dizzee Rascal, Alicia Keys, Lostprophets and Cheryl Cole have all been confirmed for Saturday’s Main Stage along with Chipmunk, 30 Seconds To Mars, Justin Beiber and Scouting For Girls.
Meanwhile, Pendulum, Biffy Clyro, Ke$ha and JLS will all hit the same stage on the Sunday in support of Rihanna along with Paramore, Jason Derulo, Paolo Nutini and Pixie Lott.
MGMT, Ellie Goulding, Tinie Tempah, Bombay Bicycle Club and Hadouken are all due to appear on the In New Music We Trust Stage on the Saturday (22 May) along with Example, Stornoway and stage headliners Faithless.
While Vampire Weekend take top slot on the same stage on the Sunday with a little help from You Me At Six, Sub Focus, Plan B, Marina And The Diamonds, Crystal Castles, Kids In Glass Houses and Delphic.
More names are expected to be announced in the coming weeks for the BBC Introducing stage and Outdoor Arena.
20,000 music lovers are expected to attend the event will take over Faenol Park in Wales with four stages of live music.
Radio 1’s One Big Weekend 2010 tickets are to be handed out for free with the majority going to residents of Bangor and other local areas.